void CDib::Create(int nWidth, int nHeight, int nBPP, DWORD dwFlags )
{
CImage::Create(nWidth, nHeight, nBPP, dwFlags );
if( IsIndexed() )
{
CreateDefaultPalette();
// GetPalette(m_palette);
}
}
void CDib::CreateCompatibleDIB( CDC& dc, int width, int height )
{
Empty();
CreateDib( CSize (width,height), dc.GetDeviceCaps( BITSPIXEL ) );
if( IsIndexed() )
{
if( dc.GetCurrentPalette() )
SetPalette( *(dc.GetCurrentPalette()) );
else CreateDefaultPalette();
}
}
bool wxGLCanvas::SetupPalette(const wxPalette& palette)
{
const int pixelFormat = ::GetPixelFormat(m_hDC);
if ( !pixelFormat )
{
wxLogLastError(_T("GetPixelFormat"));
return false;
}
PIXELFORMATDESCRIPTOR pfd;
if ( !::DescribePixelFormat(m_hDC, pixelFormat, sizeof(pfd), &pfd) )
{
wxLogLastError(_T("DescribePixelFormat"));
return false;
}
if ( !(pfd.dwFlags & PFD_NEED_PALETTE) )
return true;
m_palette = palette;
if ( !m_palette.Ok() )
{
m_palette = CreateDefaultPalette();
if ( !m_palette.Ok() )
return false;
}
if ( !::SelectPalette(m_hDC, GetHpaletteOf(m_palette), FALSE) )
{
wxLogLastError(_T("SelectPalette"));
return false;
}
if ( ::RealizePalette(m_hDC) == GDI_ERROR )
{
wxLogLastError(_T("RealizePalette"));
return false;
}
return true;
}
